Universal joint.



M. E., O. 0., H. E. & O. W. H. BLOOD.

UNIVERSAL JOINT.

APPLICATION FILED JULY 10,1908.

Patented Nov. 3, 1908.

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1% m\ [M B .0. & Q R w n .m m, Q w m Q ////z Witnesses UNITED STATESPATENT onrron.

MAURICE E. BLOOD, CLARENCE C. BLOOD, MICHIGAN, AND CHARLES W. H. BLOOD,

A HOWARD E. BLOOD, OF KALAMAZOIO,

OF WIN'FHROP, MASSACHUSETTS, ASSIGNOBS TO BLOOD BROTHERS MACHINECOMPANY, OF KALAMAZOO, MICHIGAN.

UNIVERSAL JOINT.

' Application filed July 10,

To all whom it may concern:

Be it known that we, MAURICE E. BLooD, CLARENCE C. BL oD, and HOWARD E.BLooD, citizens of the UnitedStates, residing at the citv of Kalamazoo,county of Kalamazoo,-

sembled, and'fone which can bereadi-ly disassembled andreassembled,should occasion require for the renewal of any of the wearing parts;third, to'provide an improved joint which is very durable in use andcomparatively economical to produce. 7

Further objects, and objectsrelating to structurald'etails, willdefinitely appear from the:detailed description to'follow.

We accomplish the-objects'of our. invention by the-devices a'nd'meansdescribed in the following specification The invention is clearlydefined and pointed out in the claims.

A structure embodyingthe features of our invention iscleariy,illustratedin the accompanying drawing, forming a part of this specification inwhich Figure lisp. longitudinal section of a structure embodyirl g thefeatures of our invention, the shafts being shown in detail and in fulllines. Fig.2 is 'a cross'section, tal'en ona line corresponding to-line2'2 of Figs. 1 and 2. Fig. 31is a detail longitudinal section, taken ona line correspondingto line 3-3 of Figs. 1 and 2. Figs. 4 and 5 are sideelevafi 'tions of the spline-litre bearings for the right and left-handsocket members ofFig. 1.

In the drawings, similar reference characters refer to similar partsthroughout the several v 1ews,- and the sectional views are whenl-:-.-;$T-'ing in the direction of the little arrows at I the endsof'the section line.

Referring to the drawing, 1-1 represents Specification of LettersPatent.

Patented Nov. 3, 1908 1908. serial No. 443,002.

' the shafts to be coupled and 2 represents the coupling shaft. Ourimproved coupling preferably comprises a pair of socket members, eachconsisting of a cylindrical shell 3 having internal longitudinalgrooves4 therein to'receive the spline-like bearings 5. These bearings arebeveled at each end, as at 6. The bearings 5 are secured in place-in theshell preferably by means of the end piece 7 and the clamping ring 8,the end piece and clampingring being providedwith seats 9 and-10,respectively, which receivethe ends of the bearings, clamping them inthegroovesof the shell, the seats being tapered so that, as the clampingring is forced upon the ends of the bearings as-by means. of [theclamping nutf, 1 1, which is threaded into the endof the shell-ethebearings are clamped firmly in their seats.

The end pieces 7 are adapted to receive the ends of the shafts Ito becoupled,- which are secured by means of the nuts 12, and the keys 13 sothat the shells are revolved with the shafts.

' The coactmg' coupling members each prefupon the end of the couplingshaft 2, as by means: of'the nut 15. The head 14 is pro vided withcylindrical bearing seats.1 6, in I which the forked bearingfblocks' '17are, ar ranged}. These bearing'blocks" are forked to engage thespline-like bearings 4 of the to engage and bear upon ,the edges'of thebearings 5, so thatthemember may be rection. We preferably provide oneof the couplings with curved. seats 19 in its bearings 5 to receive thebearing blocks so that longitudihal movement of the coupling members,relative to each other, is prevented} thereby securing/kin effectaball-and-soc'ket joint.

Ne preferably close the. inner end of the socket member by means of theflexible casing 20, the inner end'ofwhich is secured on a flange 21 onthe olamping'nuts 11 by means of the wire to the coupling shaft'Zby'means of a wire, as 23, the object being to exclude dust and dirt andto assist in retaining the lubricant.

By tints forming and arranging the arts, We secure a combinationuniversal and joint in which the parts are economical to erably consistof the head 14 whichis secured socket coupling member and arecurved at18.

rocked within the socket member in any: di-

22, whilethe outer end is secured lcoo sembling, the end piece 7 isfirst adjusted in the shell, the bearings 5 inserted in their seats, thebearing blocks17 inserted in the headl l and slipped intoplace in-thesocket member, the hea having, of course, been secured to the couplingshaft, and the clamping ring inserted and secured by means of theclamping nut 11, which secures all of the parts in position, and, whenremoved, releases them so that they can be entirely disassembled. Inassembling, the members of the coupling shown on. the left of Fig. 1,the bearings 5 and the head are slipped into the shell after beingbrought into proper relation to each other.. i

We have illustrated and described our imrovedcoupling in detail in theform preerred by us on account of the structural simplicity andeconomyandeth'e convenience with which the parts may be assembled ordisassembled. \lVe are, however, aware that our improvements arecapableof considerable variation in structural details without departingfrom our invention, and we desire to claim the same specifically, asillustrated,

as well as broadly.

Having thus described our invention, what we claim as new and desire tosecure by Letters Patent is:

1. The combination with a coupling shaft, of a pair of socket couplingmembers, eachcomprising a shell having internal longitudinal groove-likeseats therein, a pair of splinelike bearings having beveled endsarranged insaid seats, an end piece adapted to be secured to a shaft tobe coupled, threaded into the outer ends of said shell, said end piecehaving seats in its inner face in. which the ends of said bearings arearranged, a clamping ring having seats therein adapted to re ceivethe'outer ends of said bearin s, and a clamping nut for said ringthreaded into the inner end of said shell; and a pair of coactingcoupling members, each comprising a head secured .u on the end of saidcoupling shaft, said hea having cylindrical bearing seats therein, andforked bearing blocks arranged in said seats to engage said socketbearing members, said bearing block's being'curved to bear on the edgesof said socket bearing members, the bearings of one of said socketmembers having curved seats in their edges for the coacting bearingblocks, whereby longitudinal movement of the parts relative to eachother is revented.

2. The com ination with a coupling shaft, of a pair of socket couplingmembers, each comprising a shell having internal longito be secured toashaft to be coupled,

threaded into the outer ends of said shell, said end piece having seatsin its inner face in which the endsof said .bearingsarearranged, aclamping ring havin seats therein adapted toreceive the outer en s ofsaid'bearings, and a clamping nut for said ring threaded into the innerend of said shell; and a pair of coacting coupling members, eachcomprising a head'secured' upon the end of said coupling shaft, saidhead having Icylindrical bearing seats therein, and forked bearingblocks arranged in said seats to en'- gage said socket bearing members,said bearing blocks being curved to bear on the edges of said socketbearing members.

3. The combination with a coupling shaft, of a pair of socket couplingmembers, each comprising a shell having internal longitudinalgroove-like seats therein, a pair of splinelike bearings having beveledends arranged in saidseats, an end iece adapted to be secured to a shaftto fie coupled, arranged in the outer end of said shell, said end pieceHaving seats in its inner face in which the ends of said bearingsarearranged, a clamping ring having seats therein adapted to receive theouter ends of said bearings; and a pair of coacting coupling members,each coniprising a head secured upon the end of said coupling shaft,said head having cylindrical bearing seats therein, and forked bearingblocks arranged in said seats to engage said socket bearing members,said bearing blocks being curved to bear on the edges of said socketbearing members, the bearings of one of said socket members havingcurvedseats in their edges for the coacting bearingblocks, wherebylongitudinal movement of the parts relative to each other is revented.

4. The combination with a coupling shaft, of a pair of socket couplingmembers, each.

comprising a shell having internal longitudinal groove-l1ke seatstherein, a pa r of splinelike bearings having beveled ends arranged insaid seats, an end piece adapted to be' secured to a shaft to becoupled, arranged in the outer ends of said shell, said end piece havingseats in itsinner face in which the ends of said bearings are arranged,a clamping ring having seats therein adapted to receive the outer endsof said bearings;-- and a pair of coactlng coupling members, each com:

prising a head secured upon the end of said coupling shaft, said headhaving cylindrical bearing seats therein, and forked bearing blocksarranged in said seats to engagesaid socket bearing members, saidbearing blocks being curved to bear on the edges of said socket bearingmembers.

5. The combination of a socket coupling member, comprising a shellhaving internal longitudinal groovedike seats therein. a pair ofspline-like bearings having beveled ends arranged in said seats, an endpiece adapted of spline-like bearings having-beveled ends arranged insaid seats, an end piece adapted to be secured to a shaft to becoupled,ar-

to be secured to a shaft to be couoled, ranged in the outer ends of saidshell,'said threaded into the outcr. ends of said s2 ell,

I said end piece having seats in its innerface in which the ends. of.said bearings are arranged, a clamping ring having seats therein adaptedto receive the outer ends of said bearings. and a clamping nrt for saidring threaded into the inner end of said s'iellf I and a coac'tmgcoupling 1113IX1l)t-.l",COIHPIlSlIlg a head adapted to be secured uponthe end of a shaft, said head having cvlmdrical bearing seats therein,and forked bearing blocks arranged in said seats to engage said socketbearing members, said bearing blocks being curved to bear onthe edges ofsaid socket bearing members. i

6. The combination of a socket coupling member, comprising .a shellhaving internal longitudinalgroove-like seats therein, a pair ofspline-like bearings having beveled ends arranged in said seats, an endpiece adapted to be secured to a shaft to be coupled, arranged in theouter ends of said shell, said end piecchaving seats, in its inner facein which the ends of said bearings are arranged, a clamping ring havingseats therein adapted to receive the {outer ends of said hearings;

and a coacting coupling member comprisin a head adapted to be securedupon the ent of a shaft, said head having cylindrical hearing seatstherein, and forked bearingblocks arranged in said seats to engage saidsocket bearing members, said bearing blocks being curved to bear on theedges of said socket bearing members.

7. The combination of a socket coupling member, comprising a shellhaving interna ongitudinal groove-like seats therein, a pair ofspline-like bearings havin beveled ends arranged in said seat-s, an endpiece adapted to be secured to a shaft to be coupled, threaded'into theouter ends of saidshell, said end piece having seats in its inner facein which theendsflof said bearings are arranged, a clamping ring havingseats therein adapted to receive the outer ends of said bearings, and aclamping nut for said ringthreaded into the inner end of said shell; anda coact-ing coupling member, comprising a head adapted to be securedupon the, end of a bearing members, the said socket bearingmembers-having curved bearing seats'for said bearing blocks in theiredges.

8. -The combination with a socket coupling member, com-prisin I.longitudmalgrooved-Ikev seats therein, a pair 9 a shell having internalto receive the outer ends of said bearings;

and a. coacting coupling member, comprising a head adapted to be securedupon the end of a shaft, said head having cylindrical bearing seatstherein, andforked bearing blocks arranged in said, seats to engage saidsocket bearing members, said bearing blocks being curved to bear on theedges of said socket bearing membersgthe said socket bearing membershaving curved bearing seats for said bearing blocks in their edges.

9. The combination with acoupling shaft, of a pair of socket couplingmembers, each comprising a shell having internal longitudinalgroove-like seats therein, and'a pair of splinelike bearings secured insaid seats: and. a pair of coacting coupling members, each comprising ahead securedupon the end of said coupling shaft, said head havingcylindrical bearing seats therein and forked bearing blocks arranged insaid seats to engage said socket bearing members, said bean ing bloc-ksbeing curved longitudinally to bear on the edges of said socket bearingmembers, the bearings of one of said socket members having curved seatsin their edges for the coacting' bearing blocks, whereby longitudinalmovement of the parts relative to each other is prevented.

10. The combination with a coupling shaft, of a pair of socket couplingmembers, each comprising a shell having internal longitudinalgroove-like seats therein, and a pair of spline-like bearings secured insaid seats; and a pair of 'coacting coupling members, each comprising ahead secured upon the end of said couplingshaft, said head havingcylindrical bearing seats therein, and forked bearing bloc-ks arrangedin said seats to engage said socket bearing members, said hearing blocksbeing curved, longitudinally to bear on the edges of said socket bearingmen-ibcr 11. The combination with a coupling shaftbf a'pair of socketcoupling men'ibers, each comprising a shell, and'a pair of splinelikebearings arranged in said shell; and a pair o,l'-l-.coacting coupling.members, each comprising a head secured upon the end-of said couplingshaft, sakl head having cylindrical. bearing seats therein and forkedbeen ing blocks arranged/in said. seats to engage said socket bearingmembers, saidbearin'g blocks being curved longitudinallyto bear on theedges of said socket bearing members, the bearings of one of said socketmembers having curved seats in their edges for the coacting bearingclocks, whereby longitudinal movement of the parts relative to eachother is prevented.

12. The. combination with a coupling shaft, of a pair of socket couplingmembers, each comprising a shell, and a air of splinelike bearingsarranged in saic shell; and a pair of coacting coupling members, eachcomprising a head secured. upon the end of said coupling shaft, saidhead having cylindrical bearing seats therein and forked hear ing blocksarranged in said seats to 'engar said socket bearing members, saidbearing blocks being curved longitudinally to bear on the edges of saidsocket bearing members. 13. The combination ol a socket coupling member,comprising a shell having internal longitudinal groove-like seatstherein, and a pair of s line-like bearings secured in said seats; am acoacting coupling member, comprising a headadapted ,to be secured uponthe end of a shaft, said head havingcylindrical bearing seats therein,and forked bearing blocks arranged in said seats to engage said socketbearing members, said bearing blocks being curved longitudinally to bearon the edges of said socket bearing members, the bearings of one'of saidsocket membershav- .ing curved seats in their edges for the coactingbearing blocks, whereby longitudinal movementoi the parts relative toeach other is prevented.

14. The combination oi- 'a socket coupling member, comprising a shellhaving internal longitudinal groove-likeseats therein, and a pair ofspline-like bearings secured in said seats; and a coact'ing couplingmember, comprising a head adapted to be secured upon the end of a shaft,said head having cylindrical bearing seats therein, and forked bearingblocks arranged in said seats to engage said socket bearingme1n.bers,.saidbearing blocks being curved longitudinally to bear on theedges of said socket bearing members.

1.5. The combination of a socket coupling member, comprising a shell,and a air of spline-like bearings arranged in sai shell; and a coactingcoupling member, comprising a head adapted to be secured upon the end ofa shaft, said head having cylindrical bearing seats therein, and forkedbearing. blocks arranged in said seats to engage said socket bearingmembers, sa1dbear1ng blocks being curved longitudinally to bear on theedges of said socket bearing members, the bearings of one of said socketmembers having curved seats in their edges for the coactlng bearingblocks, whereby longitudinalmovement of the parts relative to each otheris prevented.

' 16. The combination of a socket coupling" member, comprising a shell,and adpair of sai spline-like bearings arranged in shell; and a coactingcoupling member, com rising ahead adapted to be secured upon t 0 end ofa shaft, said head having cylindrical bear- I eled ends arranged in saidseats, an en piece adapted to be secured to a shaft, threaded into theouter end of said shell, said end piece havin seats in its inner face inwhich the ends oi said bearings are arran ed, a clamping ring having aseattherein adapted to receive the ends of said bearin s, and a clampingnut for said-ring threade into the inner end of said shell; and acoaeting coupling member comprising revolubly-supported forkedbearingshaving curved bearing portions to bear on the edges of saidbearings of said socket members, the edges of said socket memberbearings having curved seats therein. to receive said forked bearingmembers, for the purpose specified.

;1.8. The combination ofa socket coupling nember comprising a shellhaving internal longitudinal groove-like seats therein, a pair ofspline-like bearing members having beveled ends arranged in said seats,an end piece adapted to be secured to a shaftthreaded into the outer endof said shell, said end piece having seats in its inner i'ace in whichthe ends oi? said bearings are arranged, a clamp- .ing ring having aseat therein. adapted to receive the ends of said bearings, and aclamping nut for said ring threaded into the inner end of said-shell;and a coacting coupling vmember comprising revohibly-supportedlongitudinal groovelike seats therein, a pair of spline-like bearingmembers havin be'veled. ends arranged in said seats, an end pieceadapted to be secured to a shaft arranged in the outer end of saidshell, said end piece having seats n ts inner face in which the ends ofsaid bearings arearranged, a clamping ring having a seat therein adaptedto receive the ends of said bearings; and a coacting coupling mei'nbercomprising revolublysupported forked bearings having curved bearingportions to bear on the edges of said bearings of said'socket members,the edges of said socket member bearings havin curved seats therein toreceive said forke bearing members, for the purpose specified. 29'. Thecombination of a socket coupliru member comprising a shell havinginterna longitudinal groovedike seats therein, a pair of spline-likebearing members having'bevscenes es sled ends arrange-d in'said seats,an end piece adapted to be secured to a shaft, arranged in the outer endof said shell, said end piece 3 having seats in its inner face in whichthe ends 01 said bearings are arranged, a. clamp ing ring having a seattherein adapted to reserve the ends of sa d beanngs; and a clamp mg nutto-r said ring threaded into the inner end of said shell; and a coat-tincoupling member comprising revolubly-supported forked bearings havingcurved hearing portions to bear on the edges of said bearings of saidsocket member.

31. The combination of a socket coupling member comprising a shellhaving internal longitudinal groovedike seats therein, a pair ofspline-like bearing members having bcveled ends secured in said seats;and a coact ing coupling member comprising revolublysupported forkedbearings having curved bearing portions to bear on the edges of saidbearings of said socket members, the edges of said socket memberbearings having curve-d seats therein to receive said forked bearingmembers, for the purpose specified.

.22. The combination of a socket couplin member comprising a shellhaving internad longitudinal groove-like seats therein; a pair ofspline-like bearing members having bev eled ends secured in said seats;and a coacting coupling member comprising revolublysupported forkedbearings having curved bearing portions to bear on the edges of saidbearings of said socket members, for the purpose specified.

23.- The combination of a socket couplingmember comprising a shell, aair of spline like bearing nienibersarranged insaid shell; and acoacting coupling member comprising 1evolnbly-supported forked bearingscurved bearing portions to bear on the edges of said bearings of saidsocket members, the edges of said socket member bearings having I curvedseats therein to receive said forked bearing members, for the purposespeclfied.

24. The combination of a socket coupling member comprising a shell, aair of splinelike bearing members arrangeu in said shell; and a coactingcoupling member comprising revolably-supported forked bearings havingcurved bearing portions to'bear on the ed es of said bearings of saidsocket-members, or the purpose specified.

In witness whereof, We have hereunto set our hands and seals in thepresence of two itnesses.

MAURICE 1. BLOOD. [1,. s.] CLARENCE C. BLOOD. [L. 5.] l-lOlVARD E.BLOOD. [n s.] CHARLES W. H. BLOOD. [n s] Howard E- raving 40

